[S] Change in flashrom[master]: programmers: Allow opaque programmers to specify custom delay

[Edward O'Callaghan (Code Review)]

Edward O'Callaghan has submitted this change. ( https://review.coreboot.org/c/flashrom/+/72424 )

(

2 is the latest approved patch-set.
No files were changed between the latest approved patch-set and the submitted one.
 )Change subject: programmers: Allow opaque programmers to specify custom delay
......................................................................

programmers: Allow opaque programmers to specify custom delay

The dummyprogrammer in the opaque case can have a NOP delay
to avoid wasting CPU time and energy.

BUG=b:266014935
TEST=builds

Change-Id: Ia86ad21f011214abc2aa0891a43559f91e2a9591
Signed-off-by: Edward O'Callaghan 
Reviewed-on: https://review.coreboot.org/c/flashrom/+/72424
Reviewed-by: Sam McNally 
Reviewed-by: Anastasia Klimchuk 
Tested-by: build bot (Jenkins) 
---
M flashrom.c
M include/programmer.h
2 files changed, 24 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Sam McNally: Looks good to me, approved
  Anastasia Klimchuk: Looks good to me, approved

diff --git a/flashrom.c b/flashrom.c
index 3e21416..f26bb47 100644
--- a/flashrom.c
+++ b/flashrom.c
@@ -277,6 +277,9 @@
    } else if (flash->mst->buses_supported & BUS_PARALLEL) {
    	if (flash->mst->par.delay)
    		return flash->mst->par.delay(flash, usecs);
+	} else if (flash->mst->buses_supported & BUS_PROG) {
+		if (flash->mst->opaque.delay)
+			return flash->mst->opaque.delay(flash, usecs);
    }

return default_delay(usecs);
diff --git a/include/programmer.h b/include/programmer.h
index 9e706d5..db32b2c 100644
--- a/include/programmer.h
+++ b/include/programmer.h
@@ -418,6 +418,7 @@
    enum flashrom_wp_result (*wp_get_ranges)(struct flashrom_wp_ranges **, struct flashctx *);
    void (*get_region)(const struct flashctx *flash, unsigned int addr, struct flash_region *region);
    int (*shutdown)(void *data);
+	void (*delay) (const struct flashctx *flash, unsigned int usecs);
    void *data;
 };
 int register_opaque_master(const struct opaque_master *mst, void *data);